Gas-regulator.



J. DOYLE.

GAB REGULATOR.

Anuoulox nur man. mo.

970,895. Patented sept.'2o,191o.

TNI rvvoknls Pl'rlls ctv-, WASHINMUN, n. c.

Ai'iNITnD sTATEs PATENT oFFIcE.

`- JOHN DoYLE, or NEW YORK, N. Y.

GAS-REGULATOR.

To all whom it may concern:

Be it known that I, JOHN Dormi, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Gas-Regulators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art `to whichit appertains to make and use the same.

My invention relates to improvements in gas regulators and is designed mainly for hanging gas lamps of the inverted type. It is not restricted to this use, however, as it .may be used for any kind ofgas lamps, gas sto-ves, gas heaters and Bunsen burners generally, and, in fact, in all cases in which it is desired to produce a practically nonluminous flame from gaseous fuel mixed in regulated quantities with air.

The object of my invention is to yproduce a device which, whenoperated to turn on the gaseous fuel, will also admit a regulated supply of air, which is drawn in and mixed with the gas as it flows and which supply` of air can be regulated to a nicety by various adjustments.

With this object in View, my invention conslsts 1n the constructlon and combmatlon of parts, as herelnafter described and claimed.

In the accompanying draw1ngs-F1gure l y `is a side view, parts being broken away, of `an inverted gas lamp havlng my inventlon applied thereto. Flg. 2 1s a cross-section,

on an enlarged scale, of the means for regulating the flow of gas and air. Fig. 3 is an end view of the same. Fig. 4 is an end view of the hand operated shutter. Fig. 5 is an end view of the shutter directly operated by the movement of the valve operating means.

Referring to Fig. 1, a represents the gas supply pipe having a branch 5 provided with a regulating valve c through which the gas flows to the ordinary pilot light and d represents the branch gas pipe which conducts the gas to the regulating means.

e represents the mantles of ordinary incandescent burners, caused to glow by an ordinary non-luminous flame, these mantles being inclosed in a globe. This globe is movably supported on a shell g, the upper part of which slopes inwardly and is provided with openings It, in the usual manner Specification of Letters Patent.

4Application filed February 14, 1910. Serial No. 543,823.

Patented Sept. 20, 1910.

and on this shell is arranged a hollow cylinder 2' terminating in the saucer shaped p0rtion y' above which is the smoke bell movably attached to the gas pipe a by the screw m, which works in a sleeve in the center of the bell.

n represents a brace uniting the part 0 to the cylinder z'. The part o is made solid.

p represents a pipe for conveying the mixed air and gas from the regulating means to the burners, and, as shown in Fig. l, it is of considerably greater diameter than the gas supply pipe (l. This pipe 79 passes outwardly through the cylinder and is provided with an enlargementg which acts as a .mixing chamber for the air and gas. The other end of this lmixing chamber is partially closed by means of an annular partition r provided with perforations s therein. The partition r is centrally perforated and provided with an extension having an internally screw threaded sleeve in which is screwed the end of a valve casing which is perforated and connects with the lower end of the gas pipe (l. Within the valve casing Vt is located a conical plug u which plug is provided with a right angle perforation as shown in Fig. 2, arranged at times to be in the same line as the lower end of the das pipe d. This plug is held in position with' 1 the casing t by a late o secured thereto by screws fw. The p ate fu is provided with a centrally located aperture which is screw threaded and with this screw threaded portion engages the screw threaded portion of a screw threaded shank w of a needle valve, which shank is provided with a milled head y. The plug u is provided with a tapered perforated end leading into the mixing chamber and it is obvious that the movement of the shank will cause the needle valve 1 to vary the size of the opening into the mixing chamber. On the shank w is secured an operating lever or handle 2 to each end of which is secured an operatinor chain or cord 3 in the usual manner. This Iever is fixed to the shank a: by means of a screw 4 so that it may be adjusted by said crank in any desired position. The lever 2 has a central enlargement which is centrally perforated and provided with a screw thread adapted to engage the shank w.

From the construction described it is apparent that the needle valve 1 may be adjusted in position to allow any desired quantity of gas to How through the pipe when the parts are in the position shown in Fig. 2. This adjustment is determined upon when the lamp is placed in position, then the screw l is tightened and no further adjustment is needed, unless it shouldv happen that the gas pressure should vary.

Outside of the partition r which acts as a stationary shutter, is a movable shutter 5 provided with a series of apertures 6. This shutter is attached in any convenient way, as by a rod 7 to the lever 2 so that the shutter 5 and lever Qwill move in unison.

8 represents a shutter adapted to be moved by hand and provided with apertures 9. This shutter is mounted on the inner end of the valve casing t and is adapted to revolve freely thereon. It is operated by means of a handle l0 which projects through a slotin the part g.

It will be seen that by this arrangement' theamount of air and gas delivered to the burners can be regulated to a nicety, the amount of gas by the adjustable needle valve and the amount of air by the system of three shutters, the inner one of which is adapted to be adjusted from time to time by the users.

The operation is evident from the foregoing description.

The advantages of this construction are the simplicity and absolute accuracy of adjustment. 'Ihe amount of air and the amount of gas entering the mixing chamber can be adjusted to any degree of nicety. The construct-ion described insures an absolute prevention of shock to the incandescent mantles by explosion, all the p arts are readily accessible, the necessity for the use of wire gauze, a common expedient, is obviated, and an automatic air cut-off and an independent air supply is secured.

One of the great objections to Bunsen burners and similar burners in which a flow of gaseous fluid entrains along with it a supplyof air, is that there is danger of back firing, in other words, that the mixture of air and gas will take fire and run back to the point where the air and gas are mixed, and when this back firing occurs, the whole object of the burner, namely, to provide a non-luminous heating flame, is prevented. By my construction, however, the danger of back firing is practically eliminated.

erases I claim: l. In an apparatus of the character described, the combination of a gas supply pipe, a burner, and a gas and air mixing device located therebetween, said device including a gas valve and an apertured shutter connected to said valve so as to move therewith, a stationary apertured shutter and a hand operated movable shutter, said shutters being mounted parallel to each otherand in proximity to the casing of the valve, substantially as described.

2. In an apparatus of the character dei.

scribed, the combination of a gas supply pipe, a delivery pipe for the mixed air and Y gas and a regulating device between said pipes, including a mixing chamber, a valve casing screwed into one part of said mixing chamber and connected to the gas pipe,

a valve adjustably arranged in said casing, a lever for operating said valve, an apertured shutter connected to said lever so as to move therewith, a stationary apertured shutter and a hand operated apertured shutter, said shutters being arranged parallel to each other and in planes perpendicular to said valve, substantially as described.

3. In an apparatus of the character described, the combination of a gas supply pipe, a delivery pipe for the gas and air, an air mixing device located between said pipes including a mixing chamber, a valve casing screwed into said mixing chamber,

one end of said mixing chamber being apertured to form a shutter, a perforated plug mounted in said valve casing, a needle valve movable in said plug, means for adjusting said needle valve, a lever connected to said needle valve for operating same, an apertured shutter mounted on said valve casing and connected to said lever so as to move in conformity therewith, and a hand operated, apertured shutter, said three shutters being parallel to each other and mounted on one end of the valve casing, substantially as described.

In testimony whereof, I affix my signature, in the presence `of two witnesses.

JOHN DoYLE. 

